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Machine tap M52x2 DIN 374 B HSSE
Narex Zdanice spol. s r.o. Narex Zdanice spol. s r.o.
0000006560
Thread size: M52x261 sizes of this tap
M5x0,5M10x1M10x1,25M11x0,75M12x1M12x1,25M12x1,5M14x1M14x1,25M14x1,5M15x1M15x1,25M15x1,5M16x1M16x1,5M17x1M18x1M18x1,5M18x2M20x0,75M20x1M20x1,25M20x1,5M20x2M22x1,5M22x2M24x1M24x1,5M24x2M25x1M25x1,5M25x2M26x1,5M27x1,5M28x1,5M30x1,5M30x2M30x3M32x1M32x1,5M32x2M33x1,5M33x2M35x1,5M36x1,5M36x2M36x3M38x1,5M39x1,5M39x2M40x1,5M42x1,5M42x2M42x3M48x1,5M50x2M52x2M56x3M60x3M64x3M64x4
€296.17 tax inc.
Net price: €240.79
Brak w magazynie
Description
Material HSSE
Thread size M52x2
ChamferB (3.5–5.5) threads
Standard DIN 374
Technical data for the M52x2 machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M52x2 |
| Thread Pitch P | 2 mm |
| Overall Length l1 | 190 mm |
| Flute Length l2 | 32 mm |
| Shank Diameter d2 | 40 mm |
| Square Drive Size a | 32 mm |
| Tap Drill Diameter | 50 mm |
| Chamfer | B (3.5÷5.5) P |
| Thread tolerance | 6H |
How the type B through-hole chamfer pushes chips down the hole
Chips exit at the bottom instead of returning through the thread
The form B chamfer for through holes has a chip breaker at the tip of the tap – an angled cut in the cutting edges. The chip breaker directs the chip down the hole, ahead of the tap tip. The chip curls into a coil, breaks into short pieces and exits the hole on the other side of the workpiece. The threads already cut remain clean because the chip does not pass through them on its way up. The M52x2 tap has a reduced shank according to DIN 374: diameter 40 mm, square size 32 mm.
1
Straight flute – chips do not enter it; the flute carries lubricant to the cutting edges.
2
The chip breaker at the tip of the tap directs chips down the hole.
3
The tap rotates clockwise to cut a right-hand thread.
4
B chamfer: 3.5–5.5 incomplete threads on the entry taper.
5
The chips break into segments: individual pieces at the top of the hole, with progressively more farther down. They fall out below the workpiece.
6
Feed 2 mm/rev, equal to the pitch of the M52x2 thread.
M52x2 metric fine machine tap – HSSE for extreme-duty hydraulics
The M52x2 metric fine machine tap is a specialized tool for cutting internal threads with a very large diameter of 52 mm in components for extreme-duty hydraulics and heavy industry. Made from HSSE high-speed steel with 5% added cobalt, it guarantees a hardness of 65-67 HRC and optimal tool life when machining difficult-to-machine materials. The M52x2 metric fine thread combines a very large diameter with a pitch of 2 mm, providing excellent leak tightness and high connection strength at operating pressures up to 500 bar.
Key advantages of the M52x2 metric fine thread machine tap
- Very large M52 diameter used in heavy industry, construction and mining machinery, and hydraulic cylinders with the highest power ratings
- Fine thread with a 2 mm pitch provides excellent leak tightness at high pressures and significantly greater strength than the M52x5 coarse thread
- HSSE steel with 5% cobalt guarantees a hardness of 65-67 HRC and heat resistance up to 650°C, essential for machining alloy steels
- The 6H tolerance in accordance with DIN 374 ensures thread accuracy and full interchangeability with fasteners
- Compatibility with ER40 holders and specialized holders for large-diameter threads on CNC machining centers
- The recommended hole diameter of 50 mm for the M52x2 metric fine thread ensures an optimal percentage of thread engagement
The M52x2 machine tap is used in the production of hydraulic cylinders with the highest power ratings, large hydraulic presses, and construction machinery. The metric fine thread provides better sealing than a coarse thread at extreme pressures. Cooling with an emulsion containing EP additives at a concentration of 8-10% is recommended.
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 31-122 | 62-244 |
| MStainless steel | 5-10 | 31-61 | 62-122 |
| KCast iron | 5-15 | 31-92 | 62-184 |
| NAluminum | 10-25 | 61-153 | 122-306 |
Thread preparation M52x2 in a through hole
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 50.0 mm
3 Tapping
M52x2
✓ Done!
Tolerance 6H
Standard: DIN 374 | Chamfer: B (straight) | Application: through holes
Tolerance 6H — metric thread tolerance classes
| Class | Accuracy | Application | Status |
|---|---|---|---|
| 4H / 4g | High | Precision connections, hydraulics | — |
| 6H / 6g | Standard | Machine building, general-purpose | SELECTED |
| 7H / 8g | Low | Large clearance, easy assembly | — |
6H = internal thread (nut, hole) | 6g = external thread (screw)
Frequently asked questions
The M52x2 metric fine thread provides over 150% greater tensile strength, excellent leak tightness at high pressures, and better resistance to self-loosening than the M52x5 coarse thread.
The recommended tap drill diameter for the M52x2 metric fine thread is 50 mm. Accurate hole machining is essential for the leak tightness of hydraulic connections with the largest diameters.
The M52x2 thread is used in hydraulic cylinders with the highest power ratings, large hydraulic presses, construction and mining machinery, and the energy industry.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
Machine tap M52x2 DIN 374 B HSSE Podgląd zdjęć produktu
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